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双折射材料的温度修正 Birefringent Material Temperature Modification `b% /.%]$ pxY5S}@ 目前,FRED尚不支持“global”温度设置,温度敏感性评估一般用脚本编程来完成,该文档演示双折射材料的折射率随温度变化的问题。附件案例文件包括两个双折射材料模,“KDP”和 “KDP Baseline”, KDP Baseline材料存储在已知温度下的折射率,KDP材料用于储存在“current”温度下的折射率值,定义为与baseline material之间的温度差。一个嵌入的脚本名为“modifyBirefringentMaterialIndex” ,包含在FRED文件中,另外也单独附加。其实现过程如下: iySmNI F%Mlid;1 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline T%]:
tDa (wA|lK3 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline {u5)zVYC,U sY#K=5R 3.Loop over the baseline material samples and determine the number of wavelength entries ^~Ar `o*eL Lk 4.Loop over each sampled wavelength entry in the baseline material ]kKsGch ' Uc|[l]
a.Modify the ordinary and extraordinary refractive index values using (2) above j`tUx#
h d5],O48A b.Apply the modified values to the non-baseline material {9=U6m^R2 8vP d~te 5.Set a description on the non-baseline material indicating the temperature change from baseline 2]C0d8=*? 0<Pe~i_= 脚本编程及GUI例程请下载链接: O42An$} 5GRN1Aov< http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs K8RloDjk_A {Rz`)qqE http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd -51L!x}1c C<7J5 HL!-4kN
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